과이아콜

과이아콜 속성

과이아콜 MSDS

1-Hydroxy-2-methoxybenzene

과이아콜 C화학적 특성, 용도, 생산

화학적 성질

Guaiacol appears as white or slightly yellow crystals or colorless to light yellow transparent oily liquid. It has a distinctive scent. It is slightly soluble in water and benzene, also easily soluble in glycerol. And it is miscible with ethanol, ether, chloroform, oil and glacier acetic acid. Guaiacol is a phenolic natural product first isolated from Guaiac resin and the oxidation of lignin. It is also present in wood smoke, as a product of pyrolysis of lignin.

출처

Detected in the distillation product from guaiac resin; guaiacol is found in castoreum oil, in the essential oil from fowers of Pandanus odoratissimus L , in the distillation waters of orange leaves, in the essential oil of Ruta Montana L and in the essential oil of tobacco leaves Also reported found in lemon peel oil, bog blueberry, asparagus, cabbage, celery, onion, chive, tomato, peppermint oil, rye bread, Parmesan cheese, butter, smoked fsh, meats, barley, dried bonito, malt, hardwood smoke, cognac, beer, brandy, rum, whiskies, sherry, grape wines, cocoa, coffee, tea, peanuts, popcorn, soybeans, avocado, beans, mushroom, sesame seed, mango, tamarind, rice dill, licorice, corn oil, cuttlefsh and other sources

용도

Guaiacol is a precursor of vanillin and santalidol (a synthetic sandal- wood fragrance). it is obtained from wood tar by the destructive distillation of hardwood, by the distillation of the phenol fraction of coal tar, or through the use of o-dichlorobenzene. it is processed to yield vanillin.

정의

ChEBI: Guaiacol is a monomethoxybenzene that consists of phenol with a methoxy substituent at the ortho position. It has a role as an expectorant, a disinfectant, a plant metabolite and an EC 1.1.1.25 (shikimate dehydrogenase) inhibitor. It is functionally related to a catechol.

제조 방법

Guaiacol can be obtained by diazotization and hydrolysis of anthranium anisole or obtained from fractionated of wood oil.
In the nature of guaiacol is presented in the guaiacum or pine oil. In the creosote oil obtained from wood dry distillation, guaiacol is the major ingredient. This product could be obtained through fractional distillation of creosote oil. Japan Osaka Refining Company takes o-nitrochlorobenzene as raw material, first synthesizes o-nitroanisole, and then reduces it to o-anisidine, and finally obtains the goods. China's production method is roughly the same. Ingredient consumption quota: 1250 kg / t of amino-containing anisole, 1500 kg / t of sulfuric acid (93%), 700 kg / t of sodium nitrite and 400 kg / t of copper sulfate.

일반 설명

Guaiacol is a colorless to amber crystals or liquid. Density (of solid) 1.129 g / cm3. Solidifies at 28°C (82.4°F), but may remain liquid for a long time even at a much lower temperature. Slightly water soluble . Soluble in aqueous sodium hydroxide. It is an agent thought to have disinfectant properties and used as an expectorant.

공기와 물의 반응

Sensitive to air and light (darkens). Slightly water soluble.

반응 프로필

Guaiacol may react with oxidizing materials. Guaiacol forms salts readily with bases.

위험도

Toxic by ingestion and skin absorption.

화재위험

Guaiacol is combustible.

Purification Methods

Crystallise guaiacol from *benzene/pet ether or distil it in a vacuum. [Beilstein 6 H 768, 6 IV 5563.]

Toxicity evaluation

LD50:900 mg / kg (rat, subcutaneous).
LD50: 3.7 mg / kg (rabbit, intravenously).
Oral administration of large amount can stimulate the esophagus and stomach, resulting in heart failure, collapse and death.

과이아콜 준비 용품 및 원자재

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과이아콜 공급 업체

공급자	전화	이메일	국가	제품 수	이점
Hebei Bonster Technology Co.,Limited	+8613315996897	bsterltd.wendy@gmail.com	China	796	58
Hebei Yibangte Import and Export Co. , Ltd.	+86-0311-85030958 +8615532196582	lisa@yibangte.com	China	2987	58
Wuhan Boyuan Import & Export Co., LTD	+8615175982296	Mike@whby-chem.com	China	974	58
Hebei Mojin Biotechnology Co., Ltd	+8613288715578	sales@hbmojin.com	China	12452	58
Anhui Yiao New Material Technology Co., Ltd	+86-199-55145978 +8619955145978	sales8@anhuiyiao.com	China	253	58
Sigma Audley	+86-18336680971 +86-18126314766	nova@sh-teruiop.com	China	524	58
Shandong Juchuang Chemical Co., LTD	+86-18885615001 +86-18885615001	admin@juchuangchem.com	China	387	58
Shanghai Aosiris new Material Technology Co., LTD	+8615139564871	wrjmoon2000@163.com	China	350	58
Capot Chemical Co.,Ltd.	571-85586718 +8613336195806	sales@capotchem.com	China	29797	60
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21695	55

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